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SPI exam 2 Questions and Answers 100% Correct |
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SPI exam 2 Questions and Answers 100% Correct |
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SPI exam 2 Questions and Answers 100%Correct | 2024-2025
A cross-section image is made up of many scanlines. How many scanlines are
there in one frame? - ANSWER 128-256
Which type of wave is able to travel in both vacuum and different media -
ANSWER Electromagnet wave
Which type of wave is an ultrasound waves? - ANSWER Mechanical
longitudinal wave
In a mechanical transverse wave,, particles move____to the sound source -
ANSWER Perpendicular
Any mechanical longitudinal waves, particles move_____to the sound source -
ANSWER Parallel
What represents scarcity of particle density? - ANSWER Rarefaction
Acoustic variables: - ANSWER Pressure, density, particle motion, temperature
What is a typical frequency transducer used for imaging? - ANSWER 2 - 12 MHz
A sound greater than 1,000,000 Hz - ANSWER Diagnostic Ultrasound
, Sound greater than 20khz - ANSWER Ultrasound
Less than 20 Hz - ANSWER Infra-sound
20 Hz to 20 kHz - ANSWER Hearing Range
330 m/s - ANSWER Air
300 m/s - 1200 m/s - ANSWER Lungs
1450 m/s - ANSWER Fat
1540 m/s - ANSWER Soft tissue
Greater than 2000 m/s - ANSWER Bone
If the period for certain wave was 1/5 second, what is its frequency? - ANSWER
5 Hz
For a sonographer to scan deep tissue, which of the following transducers
frequency would be the best - ANSWER 2 MHz, rather than 15 MHz
In what particular type of captivation do we have lower MI levels where the
micro-bubbles expand and contract but do not Burst? - ANSWER Stable
cativation
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